District 4
2x2 Callsigns (100)
| Callsign | Phonetic | Morse | End Date | Available Date | Status |
|---|---|---|---|---|---|
| WB4CQ | 9 | 65 | 2031-04-06 | — | Active (Vanity) |
| WB4CR | 10 | 59 | — | — | Available |
| WB4CS | 10 | 57 | 2033-03-03 | — | Active (Vanity) |
| WB4CT | 9 | 55 | — | — | Available |
| WB4CU | 10 | 59 | — | — | Available |
| WB4CV | 9 | 61 | — | — | Available |
| WB4CW | 9 | 61 | 2031-02-09 | — | Active (Vanity) |
| WB4CX | 9 | 63 | — | — | Available |
| WB4CY | 9 | 65 | — | — | Available |
| WB4CZ | 9 | 63 | — | — | Available |
| WB4DA | 9 | 53 | — | — | Available |
| WB4DB | 9 | 57 | 2027-12-08 | — | Active (Vanity) |
| WB4DC | 9 | 59 | 2031-06-21 | — | Active (Vanity) |
| WB4DD | 9 | 55 | 2028-10-15 | — | Active (Vanity) |
| WB4DE | 9 | 49 | 2031-05-27 | — | Active (Vanity) |
| WB4DF | 9 | 57 | — | — | Available |
| WB4DG | 8 | 57 | — | — | Available |
| WB4DH | 9 | 55 | 2027-12-01 | — | Active (Vanity) |
| WB4DI | 10 | 51 | — | — | Available |
| WB4DJ | 10 | 61 | — | — | Available |
| WB4DK | 9 | 57 | — | — | Available |
| WB4DL | 9 | 57 | — | — | Available |
| WB4DM | 8 | 55 | — | — | Available |
| WB4DN | 10 | 53 | 2029-01-07 | — | Active (Vanity) |
| WB4DO | 9 | 59 | — | — | Available |
| WB4DP | 9 | 59 | — | — | Available |
| WB4DQ | 9 | 61 | — | — | Available |
| WB4DR | 10 | 55 | 2031-08-03 | — | Active (Vanity) |
| WB4DS | 10 | 53 | 2021-04-05 | 2023-04-06 | Available |
| WB4DT | 9 | 51 | 2027-12-18 | — | Active (Vanity) |
| WB4DU | 10 | 55 | — | — | Available |
| WB4DV | 9 | 57 | — | — | Available |
| WB4DW | 9 | 57 | 2030-11-17 | — | Active (Vanity) |
| WB4DX | 9 | 59 | 2027-10-28 | — | Active (Vanity) |
| WB4DY | 9 | 61 | 2034-11-04 | — | Active (Vanity) |
| WB4DZ | 9 | 59 | — | — | Available |
| WB4EA | 9 | 47 | — | — | Available |
| WB4EB | 9 | 51 | — | — | Available |
| WB4EC | 9 | 53 | 2027-05-01 | — | Active (Vanity) |
| WB4ED | 9 | 49 | — | — | Available |
| WB4EE | 9 | 43 | — | — | Available |
| WB4EF | 9 | 51 | — | — | Available |
| WB4EG | 8 | 51 | — | — | Available |
| WB4EH | 9 | 49 | — | — | Available |
| WB4EI | 10 | 45 | — | — | Available |
| WB4EJ | 10 | 55 | — | — | Available |
| WB4EK | 9 | 51 | — | — | Available |
| WB4EL | 9 | 51 | 2028-10-13 | — | Active (Vanity) |
| WB4EM | 8 | 49 | 2033-09-01 | — | Active (Vanity) |
| WB4EN | 10 | 47 | 2029-08-21 | — | Active (Vanity) |
| WB4EO | 9 | 53 | — | — | Available |
| WB4EP | 9 | 53 | 2022-07-17 | 2024-07-18 | Available |
| WB4EQ | 9 | 55 | — | — | Available |
| WB4ER | 10 | 49 | — | — | Available |
| WB4ES | 10 | 47 | 2032-03-03 | — | Active (Vanity) |
| WB4ET | 9 | 45 | — | — | Available |
| WB4EU | 10 | 49 | — | — | Available |
| WB4EV | 9 | 51 | — | — | Available |
| WB4EW | 9 | 51 | — | — | Available |
| WB4EX | 9 | 53 | — | — | Available |
| WB4EY | 9 | 55 | — | — | Available |
| WB4EZ | 9 | 53 | 2030-08-29 | — | Active (Vanity) |
| WB4FA | 9 | 55 | — | — | Available |
| WB4FB | 9 | 59 | — | — | Available |
| WB4FC | 9 | 61 | — | — | Available |
| WB4FD | 9 | 57 | — | — | Available |
| WB4FE | 9 | 51 | — | — | Available |
| WB4FF | 9 | 59 | — | — | Available |
| WB4FG | 8 | 59 | — | — | Available |
| WB4FH | 9 | 57 | — | — | Available |
| WB4FI | 10 | 53 | 2023-08-26 | 2025-08-27 | Available |
| WB4FJ | 10 | 63 | — | — | Available |
| WB4FK | 9 | 59 | — | — | Available |
| WB4FL | 9 | 59 | 2032-09-05 | — | Active (Vanity) |
| WB4FM | 8 | 57 | — | — | Available |
| WB4FN | 10 | 55 | — | — | Available |
| WB4FO | 9 | 61 | — | — | Available |
| WB4FP | 9 | 61 | — | — | Available |
| WB4FQ | 9 | 63 | — | — | Available |
| WB4FR | 10 | 57 | — | — | Available |
| WB4FS | 10 | 55 | 2016-02-25 | 2018-02-26 | Available |
| WB4FT | 9 | 53 | — | — | Available |
| WB4FU | 10 | 57 | — | — | Available |
| WB4FV | 9 | 59 | — | — | Available |
| WB4FW | 9 | 59 | — | — | Available |
| WB4FX | 9 | 61 | — | — | Available |
| WB4FY | 9 | 63 | — | — | Available |
| WB4FZ | 9 | 61 | — | — | Available |
| WB4GA | 8 | 55 | — | — | Available |
| WB4GB | 8 | 59 | 2033-12-12 | — | Active (Vanity) |
| WB4GC | 8 | 61 | — | — | Available |
| WB4GD | 8 | 57 | — | — | Available |
| WB4GE | 8 | 51 | — | — | Available |
| WB4GF | 8 | 59 | — | — | Available |
| WB4GG | 7 | 59 | 2032-07-17 | — | Active (Vanity) |
| WB4GH | 8 | 57 | — | — | Available |
| WB4GI | 9 | 53 | — | — | Available |
| WB4GJ | 9 | 63 | — | — | Available |
| WB4GK | 8 | 59 | — | — | Available |
| WB4GL | 8 | 59 | — | — | Available |